ioki-mobility/ioki-ruby
Nov 2024 – May 2026
16 Months active
Languages Used
Ruby
Technical Skills
API DesignAPI IntegrationBackend DevelopmentCode RenamingModel DefinitionRefactoring
Serge Hänni
PROFILE
Serge Hänni
Over a 16-month period, contributed to the ioki-mobility/ioki-ruby repository by designing and delivering over 40 features focused on API development, backend enhancements, and robust data modeling. Leveraging Ruby and Ruby on Rails, implemented new endpoints for operator workflows, improved payment and reporting capabilities, and strengthened error handling and test reliability. The work included refactoring for code quality, introducing secure session management, and expanding geocoding and ride management features. Emphasized maintainability through consistent code standards, comprehensive RSpec testing, and clear API contracts, resulting in a more reliable, scalable platform that supports efficient operator integration and streamlined business processes.
Overall Statistics
Feature vs Bugs
87%Features
Repository Contributions
83Total
Bugs
6
Commits
83
Features
41
Lines of code
3,092
Activity Months16
Your Network
8 peopleShared Repositories
8
Work History
May 2026
5 Commits • 2 Features
May 1, 2026May 2026 performance summary for ioki-ruby (ioki-mobility/ioki-ruby): Delivered major operator-facing API enhancements, expanded data models, and added new endpoints to improve operator self-service and ride management. No blocking production bugs reported; work focused on feature delivery, API design, and test updates.
5 Commits • 2 Features
May 1, 2026May 2026 performance summary for ioki-ruby (ioki-mobility/ioki-ruby): Delivered major operator-facing API enhancements, expanded data models, and added new endpoints to improve operator self-service and ride management. No blocking production bugs reported; work focused on feature delivery, API design, and test updates.
May 2026
April 2026
4 Commits • 1 Features
Apr 1, 2026Month: 2026-04 | Repo: ioki-mobility/ioki-ruby Concise monthly summary focusing on business value and technical achievements. This month delivered API enhancements for operator workflows, strengthened test reliability, and reinforced data integrity for payments. Key outcomes: - Operator API enhancements: added first_name and last_name attributes to RidePassenger, introduced a feature flag to manage whether passenger names or tickets are required, and added a summary endpoint for failed purchases to aid payment management. - Test stabilization: fixed misspelling of ride_inquiry (previously ride_inqury) across multiple test files to ensure tests run correctly and CI stability. - Overall impact: improved capabilities for operator workflows, better data quality for payments, and more reliable CI feedback loop for Ruby SDK changes. Technologies/skills demonstrated: Ruby, API design, feature flag implementation, test maintenance and CI, version control (Git).
April 2026
4 Commits • 1 Features
Apr 1, 2026Month: 2026-04 | Repo: ioki-mobility/ioki-ruby Concise monthly summary focusing on business value and technical achievements. This month delivered API enhancements for operator workflows, strengthened test reliability, and reinforced data integrity for payments. Key outcomes: - Operator API enhancements: added first_name and last_name attributes to RidePassenger, introduced a feature flag to manage whether passenger names or tickets are required, and added a summary endpoint for failed purchases to aid payment management. - Test stabilization: fixed misspelling of ride_inquiry (previously ride_inqury) across multiple test files to ensure tests run correctly and CI stability. - Overall impact: improved capabilities for operator workflows, better data quality for payments, and more reliable CI feedback loop for Ruby SDK changes. Technologies/skills demonstrated: Ruby, API design, feature flag implementation, test maintenance and CI, version control (Git).
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for ioki-mobility/ioki-ruby focusing on code quality improvements and secure session handling. Key deliveries include two primary items: (1) Code Quality Refactor to Address Rubocop Violations, a bug fix that reorganized helper modules and optimized array handling to improve maintainability (Commit: cbb2d0afa1eb96c48e35a0c3e03d07b95a499ae9). (2) Session Expiration Handling with CSRF Protection, a feature that introduces a new SessionExpired error and Rails-based handling for invalid CSRF tokens and expired sessions to improve security and reliability (Commit: ce69359a69f2d8eab928ac0894aa1dd098b85f4e). Impact summary: Reduced Rubocop violations and improved code maintainability; strengthened session security and reliability, lowering production error risk related to CSRF/session expiry. This work supports faster onboarding for contributors and clearer error semantics for future feature work. Technologies/skills demonstrated include Ruby, Rails, Rubocop, error handling patterns, and secure session management.
2 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for ioki-mobility/ioki-ruby focusing on code quality improvements and secure session handling. Key deliveries include two primary items: (1) Code Quality Refactor to Address Rubocop Violations, a bug fix that reorganized helper modules and optimized array handling to improve maintainability (Commit: cbb2d0afa1eb96c48e35a0c3e03d07b95a499ae9). (2) Session Expiration Handling with CSRF Protection, a feature that introduces a new SessionExpired error and Rails-based handling for invalid CSRF tokens and expired sessions to improve security and reliability (Commit: ce69359a69f2d8eab928ac0894aa1dd098b85f4e). Impact summary: Reduced Rubocop violations and improved code maintainability; strengthened session security and reliability, lowering production error risk related to CSRF/session expiry. This work supports faster onboarding for contributors and clearer error semantics for future feature work. Technologies/skills demonstrated include Ruby, Rails, Rubocop, error handling patterns, and secure session management.
March 2026
February 2026
6 Commits • 5 Features
Feb 1, 2026February 2026 monthly summary for ioki-mobility/ioki-ruby focusing on API quality, feature delivery, and test/maintenance improvements. Delivered five key Operator API enhancements, introduced new geocoding capabilities, and strengthened testing and CI hygiene to support faster, safer provider integrations.
February 2026
6 Commits • 5 Features
Feb 1, 2026February 2026 monthly summary for ioki-mobility/ioki-ruby focusing on API quality, feature delivery, and test/maintenance improvements. Delivered five key Operator API enhancements, introduced new geocoding capabilities, and strengthened testing and CI hygiene to support faster, safer provider integrations.
January 2026
3 Commits • 3 Features
Jan 1, 2026Concise monthly summary for 2026-01 focusing on feature deliveries and API improvements in the ioki-ruby repository. This month centered on API data modeling enhancements to improve ride matching observability, geocoding detail, and product requirements enforcement. No explicit major bug fixes were recorded in this period; work was primarily feature delivery and API consistency improvements that reduce ambiguity and enable new capabilities.
3 Commits • 3 Features
Jan 1, 2026Concise monthly summary for 2026-01 focusing on feature deliveries and API improvements in the ioki-ruby repository. This month centered on API data modeling enhancements to improve ride matching observability, geocoding detail, and product requirements enforcement. No explicit major bug fixes were recorded in this period; work was primarily feature delivery and API consistency improvements that reduce ambiguity and enable new capabilities.
January 2026
December 2025
4 Commits • 3 Features
Dec 1, 2025Concise monthly summary for 2025-12 focused on delivery, reliability, and business value in the ioki-ruby client. Delivered three core enhancements across admin webhook localization, passenger ride matching state tracking, and payments API, with clear signals for operator integrations and payment requirements.
December 2025
4 Commits • 3 Features
Dec 1, 2025Concise monthly summary for 2025-12 focused on delivery, reliability, and business value in the ioki-ruby client. Delivered three core enhancements across admin webhook localization, passenger ride matching state tracking, and payments API, with clear signals for operator integrations and payment requirements.
November 2025
3 Commits • 3 Features
Nov 1, 2025November 2025 performance summary for ioki-mobility/ioki-ruby focusing on API structure, naming consistency, and error diagnostics. Delivered production-ready enhancements that strengthen operator feature modeling, standardized API identifiers, and improved error reporting for support and diagnostics. These changes tighten API contracts, reduce integration friction for operators, and enable faster issue resolution without impacting existing clients.
3 Commits • 3 Features
Nov 1, 2025November 2025 performance summary for ioki-mobility/ioki-ruby focusing on API structure, naming consistency, and error diagnostics. Delivered production-ready enhancements that strengthen operator feature modeling, standardized API identifiers, and improved error reporting for support and diagnostics. These changes tighten API contracts, reduce integration friction for operators, and enable faster issue resolution without impacting existing clients.
November 2025
September 2025
6 Commits • 3 Features
Sep 1, 2025September 2025: Delivered major Operator API enhancements in ioki-ruby, expanding geocoding capabilities, introducing a tagging model, and fixing a critical model naming issue. These changes improve lifecycle management for geocoding sessions, enable robust geocoding search and retrieval, and add flexible metadata tagging to task lists, all contributing to operational efficiency, better data quality, and faster feature delivery for operators.
September 2025
6 Commits • 3 Features
Sep 1, 2025September 2025: Delivered major Operator API enhancements in ioki-ruby, expanding geocoding capabilities, introducing a tagging model, and fixing a critical model naming issue. These changes improve lifecycle management for geocoding sessions, enable robust geocoding search and retrieval, and add flexible metadata tagging to task lists, all contributing to operational efficiency, better data quality, and faster feature delivery for operators.
August 2025
16 Commits • 3 Features
Aug 1, 2025August 2025 highlights for ioki-mobility/ioki-ruby: Expanded the Operator API surface, stabilized core models, and improved reporting accuracy. Delivered end-to-end Operator API support for creating rides and bookings, ride series management, and enriched ride inquiries with passenger data and options to improve scheduling and customer handling. Introduced a dedicated User Management endpoint for operator workflows, and added reporting enhancements with localized_reference_timestamp and null-value filter flags. Completed a broad set of bug fixes and refactors to stabilize RideInquiry and Estimation namespaces, fix namespace/name issues, and improve create_user handling. Business impact: faster operator-led operations, more reliable data for scheduling and analytics, and a more robust, maintainable codebase.
16 Commits • 3 Features
Aug 1, 2025August 2025 highlights for ioki-mobility/ioki-ruby: Expanded the Operator API surface, stabilized core models, and improved reporting accuracy. Delivered end-to-end Operator API support for creating rides and bookings, ride series management, and enriched ride inquiries with passenger data and options to improve scheduling and customer handling. Introduced a dedicated User Management endpoint for operator workflows, and added reporting enhancements with localized_reference_timestamp and null-value filter flags. Completed a broad set of bug fixes and refactors to stabilize RideInquiry and Estimation namespaces, fix namespace/name issues, and improve create_user handling. Business impact: faster operator-led operations, more reliable data for scheduling and analytics, and a more robust, maintainable codebase.
August 2025
July 2025
4 Commits • 3 Features
Jul 1, 2025July 2025 (ioki-mobility/ioki-ruby): Focused delivery on API capabilities and reporting data models, with careful management of API lifecycle to maintain stability.
July 2025
4 Commits • 3 Features
Jul 1, 2025July 2025 (ioki-mobility/ioki-ruby): Focused delivery on API capabilities and reporting data models, with careful management of API lifecycle to maintain stability.
June 2025
4 Commits • 3 Features
Jun 1, 2025June 2025: Delivered PayPal Secure Element support for ride bookings, completed code quality improvements across the Ruby codebase, and added an unread admin notifications API. These changes enhance payment capabilities, code quality, and administrative visibility, helping to accelerate secure payments, reduce maintenance overhead, and improve operational monitoring.
4 Commits • 3 Features
Jun 1, 2025June 2025: Delivered PayPal Secure Element support for ride bookings, completed code quality improvements across the Ruby codebase, and added an unread admin notifications API. These changes enhance payment capabilities, code quality, and administrative visibility, helping to accelerate secure payments, reduce maintenance overhead, and improve operational monitoring.
June 2025
May 2025
7 Commits • 3 Features
May 1, 2025For May 2025, delivered foundational Operator API capabilities (navigation data access and bootstrap), expanded Operator API user management (settings, email preferences, last activity, segmentation), and extended Passenger API with ticketing payment method types. These changes enable streamlined operator onboarding, enhanced user customization, and improved support for ticketing flows, positioning the platform for faster onboarding and data-driven insights.
May 2025
7 Commits • 3 Features
May 1, 2025For May 2025, delivered foundational Operator API capabilities (navigation data access and bootstrap), expanded Operator API user management (settings, email preferences, last activity, segmentation), and extended Passenger API with ticketing payment method types. These changes enable streamlined operator onboarding, enhanced user customization, and improved support for ticketing flows, positioning the platform for faster onboarding and data-driven insights.
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025: Maintainability sprint for ioki-ruby. Completed codebase cleanup and test consistency improvements by removing an obsolete OpenStruct require and standardizing RSpec shared examples usage (task list model specs) to use it_behaves_like, backed by two commits (Remove obsolete `require`, Fix lint issues). These changes reduce technical debt, improve test reliability, and set a safer foundation for future feature work.
2 Commits • 1 Features
Apr 1, 2025April 2025: Maintainability sprint for ioki-ruby. Completed codebase cleanup and test consistency improvements by removing an obsolete OpenStruct require and standardizing RSpec shared examples usage (task list model specs) to use it_behaves_like, backed by two commits (Remove obsolete `require`, Fix lint issues). These changes reduce technical debt, improve test reliability, and set a safer foundation for future feature work.
April 2025
February 2025
7 Commits • 2 Features
Feb 1, 2025February 2025 (2025-02) focused on stabilizing the Ruby REST client and enhancing reporting capabilities in ioki-ruby. Key features delivered include migrating the Ioki API client to Faraday's retry middleware, expanding retriable exceptions, and tightening 5xx retry behavior, with tests validating behavior under simulated network conditions. Added a new ReportPartitionInfo.estimated_row_count attribute to enable more accurate reporting. A major bug fix implemented robust handling of empty/nil/malformed API responses across endpoints, with tests ensuring correct nil/empty model returns and preserved behavior. Overall impact: higher reliability in flaky networks, more reliable data reporting, and a stronger test suite. Technologies demonstrated: Faraday integration, retry middleware, robust API client error handling, Ruby, and test-driven development.
February 2025
7 Commits • 2 Features
Feb 1, 2025February 2025 (2025-02) focused on stabilizing the Ruby REST client and enhancing reporting capabilities in ioki-ruby. Key features delivered include migrating the Ioki API client to Faraday's retry middleware, expanding retriable exceptions, and tightening 5xx retry behavior, with tests validating behavior under simulated network conditions. Added a new ReportPartitionInfo.estimated_row_count attribute to enable more accurate reporting. A major bug fix implemented robust handling of empty/nil/malformed API responses across endpoints, with tests ensuring correct nil/empty model returns and preserved behavior. Overall impact: higher reliability in flaky networks, more reliable data reporting, and a stronger test suite. Technologies demonstrated: Faraday integration, retry middleware, robust API client error handling, Ruby, and test-driven development.
January 2025
4 Commits • 2 Features
Jan 1, 2025January 2025 — ioki-mobility/ioki-ruby: Reliability, compatibility, and governance improvements. Delivered three core enhancements across the library to increase robustness, compatibility with varying input shapes, and reporting governance for better data staging. Key outcomes include a hardened retry mechanism for paginated HTTP index endpoints, more flexible sub-object type parsing, and an extended report model with a release_stage attribute. Commits underpinning these changes include: 3927518dec9873d007e45804bfa17e82136bdc67 (Remove StandardError from retry mechanism), 8647976fa2ae791ee0c8097555a72651674da337 (Fix retry of index endpoints with auto_paginate: true), e85d64fa5b46d8e8de5ff5ea1ac6ba70ca6d7fdb (Change to be less strict when parsing type of sub-objects), and 219ebb50f345af57afecb6e892ced69350084465 (Add release_stage for reports).
4 Commits • 2 Features
Jan 1, 2025January 2025 — ioki-mobility/ioki-ruby: Reliability, compatibility, and governance improvements. Delivered three core enhancements across the library to increase robustness, compatibility with varying input shapes, and reporting governance for better data staging. Key outcomes include a hardened retry mechanism for paginated HTTP index endpoints, more flexible sub-object type parsing, and an extended report model with a release_stage attribute. Commits underpinning these changes include: 3927518dec9873d007e45804bfa17e82136bdc67 (Remove StandardError from retry mechanism), 8647976fa2ae791ee0c8097555a72651674da337 (Fix retry of index endpoints with auto_paginate: true), e85d64fa5b46d8e8de5ff5ea1ac6ba70ca6d7fdb (Change to be less strict when parsing type of sub-objects), and 219ebb50f345af57afecb6e892ced69350084465 (Add release_stage for reports).
January 2025
November 2024
6 Commits • 3 Features
Nov 1, 2024November 2024 monthly summary for ioki-ruby: Delivered API renaming and partitions to align with the new Reporting API structure, enhanced Operator creation with provider_id, and added server-side report filtering. These changes strengthen API consistency, operator provisioning, and data retrieval performance. Demonstrated Ruby proficiency, API design discipline, ActiveRecord model changes, and server-side filtering for scalable reporting. Business value includes easier onboarding for partners, cleaner integration points, and more efficient data access for reporting.
November 2024
6 Commits • 3 Features
Nov 1, 2024November 2024 monthly summary for ioki-ruby: Delivered API renaming and partitions to align with the new Reporting API structure, enhanced Operator creation with provider_id, and added server-side report filtering. These changes strengthen API consistency, operator provisioning, and data retrieval performance. Demonstrated Ruby proficiency, API design discipline, ActiveRecord model changes, and server-side filtering for scalable reporting. Business value includes easier onboarding for partners, cleaner integration points, and more efficient data access for reporting.
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Quality Metrics
Correctness96.6%
Maintainability97.0%
Architecture95.2%
Performance94.6%
AI Usage22.4%
Skills & Technologies
Programming Languages
Ruby
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI Integration TestingAPI developmentBackend DevelopmentCode MaintenanceCode QualityCode RefactoringCode RenamingData ModelingDependency ManagementError HandlingHTTP ClientsLinting
Repositories Contributed To
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